I have a love-hate relationship with things I don't understand. Uncompleted puzzles. Unsolved problems. Unanswered questions. They were tormenting but I found them compelling and it was something I picked up from Ragnar, my older brother, and my mother.
I also couldn't stand when problems went unsolved and when I didn't get answers to questions. Questions like who killed my mother on my father's birthday and why they did it. Not knowing the answers to those questions still tormented my brother and I but we hadn't given up searching for them and we weren't going to.